Picture-mounting leaf or book



No.749,281. PATENTED JAN. 12, 1904. A. W. ENGEL.

PICTURE MOUNTING LEAF OR BOOK.

APPLICATION FILED SEPT. 26, 1902.

N0 MODEL.

.12 in leaf-retaining position. pose of securing any number of fohosof such Patented January 12, 1904.

PATENT OFFICE.

ALBERT W. ENGEL, OF CHICAGO, ILLINOIS? PICTURE -M C DUNT ING LEAF O R BOOK- S PEGI [FICAT ION forming part of Letters Patent No. 749,281, dated January 12, 1904.

l Application filed September 26, 1902, Serial No. l24,887. (No model.)

To all whom it may concern.-

. Be it known that LALBERT W. ENGEL, a citizen of the United States, and a resident of Chicago, Illinois, have invented certain new and useful Improvements in Picture-Mounti ing Leaves or Books,-of which the following is a specification, reference being had to the aci companying drawings, forming a part thereof.

The purpose of this invention is to provide a t a novel construction of a book or album having interchangeable leaves; and it consists of the features ofconstruction of the leaf and book as set out in the claims.

1 In the drawings, Figure 1 is a view'showinga book open at the middle, the right-hand leaf being partlytorn away and the fastening devices being in leaf-retaining position. Fig.

2'is a detail view showing the middleportion tion. Fig. 4 is a detail section through the j leaf-retaining device, the elements greatly magnified. Fig. 5 is a plan-viewof the twopart fastener shown in :the preceding figures.

Fig. 6 is a detail wiewsimilar to Figs3, show-- ingamodified form of two-part fastener in j leaf-retaining P08111011. Fig. 7 is a, plan view of the two parts of the fastener shownin Fig. i 6. Fig. 8 1s a vlew similar to Fig- 6, show' mg a one-part fastener, which is seen in full line partly entered and in dotted line in securing position. Fig..9is a plan view of the fastener shown in Fig. 8.

My improved leaf-retaining device is shown ,1 in Fig.1 securing one folio of leaves 1 1 to the cover 8 8 of a book, the latter being shown open at the middle with fastening devices 12 For the purleaves together or securing such leaves within a :cover whlch .COIlStllJUtGS practically simply aneaddltlonalfolio, althoughlt may be-of 1 heaviermaterial, I employa fastener preferably comprising two parts 12 12, made up of suitably firm and comparatively stiff but elastically flexible material. I have used for this purpose celluloid film, either without covering or, preferably, covered on both sides either .with the material of which the leaves or cover of the book is composed or to harmonize therewith. This fastener comprises two hook projections 13 13, and when it is made in two pieces, as in the first form illustrated and now 1described, each piece has one of said projections. The folios and cover have slots or slits 14 14 at their fold, through which, when registered, the hook projections 13 13 may be entered and the fasteners moved to cause the hook to overhang the fold beyond one end of the slit. The folio and cover have a third slit '15 intermediate the slits 14: 14, and the fas- .tener comprises a projection 16, adapted to enter through this slit, and when the fastener is made in two parts'this third projection 16 on each of the parts has an aperture 17, and when the two parts are moved relatively longitudinally, so that the apertures'l'? coincide, the hooks of the projections 13 13 overhang the folds beyond one end of their respective slots, and any fastening device, as cord or ribbon, being passed through the coinciding apertures 17 17 and tied, so as to retain the two parts of the fastener thus relatively displaced longitudinally from their entering positions, the device is secured in the leaves and cover, being retained by the overhanging hooks Inthe first form (shown in Figs. 1 and 2)'I have represented the projection 16 on. each part of the fastener as T-shaped, the branch 16 of the cross of the T remote from the hook 13 of the same part being longer than the other branch, 16", and the distance. from the outer extremity of the hook 13 to the remote side of the T-shaped projection 16 substantially equal to the distance between the remote extremities of the slots 14 and 15, so that in order to enter each part of the fastener in place the longer end 16 of the cross of the T- shaped projection 16 is inserted in the slot 15 and. moved until the stem of the T reaches the extremity of the slot, so that the hook 13 can pass througlrthe slot 14, which is only wide enough to admit the hook, this mode of insertion being adopted with both parts of the fastener, and when the hooks 13 of both have been passed through their corresponding slots 1e it is necessary to displace both of them longitudinally a distance sufficient to cause both the hooks 13 to overhang the fold beyond the end of the slots, respectively, in order to bring the apertures 17 of the projection 16 coinciding. In the form shown in Fig. 6 the construction is modified by making the two parts of the fastener so that the outer hook of each (indicated at 13) may be engaged with its slot without requiring the slot to be materially longer than the width of the stem of the hook, the corner or heel of the hook 13 being rounded, as seen in said figure. With this construction the middle slot 15 is made only of sufficient width to admit the middle projection 16 andthat projection is without overhang ing horns, such as 16 and 16 of the other form, and the apertures 17 coincide when the projections are inserted through the slot, and being fastened together in the manner de-' scribed the fastener is secured in its place.

It will be manifest that the hooks may'project in either directionthat is. either inwardly toward or outwardly from the center;

also, that when the form shown in. Fig. 6 is employedthat is, the hooks being engaged in a slot whose length is only substantially the width of the stein of the hookitis not essential that the hooks project in opposite directions, since no longitudinal movement can occur in any event after the projections are entered through the slots.

In Fig. 8 I have shown a third form of'the fastener in which it is made in one piece, being adapted to have its two hooks 13 13 entered through the two slits 14: 14:, notwithstanding the distance between, the hooks is greater than the distance between the slits, by taking advantage of the flexibility of the device, which may be deflected between the hooks to take up the excess of length and bringthe hooks to their repective slots, the excess length being sufficient to cause the hooks when the clip is straightened out to overhang the fold beyond the ends of the slots. Whenthe book is folded, it is. perfectly secure, because the clip is kept extended full length, and: the stiffness of the clip causing it to be normally extended at the full length renders it secure even when the book is open. In this constructionthe stiffness of the clip or its tendency to maintain its full length and the embracing of the same between the folds of the book when closed constitute means for holding theclip, with its books, in engaging position, as specified in my claims, while in the other construction, having two parts, the extensibility by reason of its being in two parts constitutes the means for serving the same purpose." 1

To a certain extent the cover and vfolios may be retained together by either of the two clips which together make up the more complete fastener by reason of the fact that the clip having had the longer end of the T cross or hook for the middle slit entered so as to overhang the remote end of that slit in order to permit the other hook to be entered through its slits and having been then moved longitudinally to cause the hook of the second projection to overhang the longer end of the T-cross will still overhang the fold beyond the slot through which it is entered because the difference between the length of the slot and the width of the stem of the hook or T is less than the overhang of the longer arm of the T-cross. Any means being provided for holding the clip adjusted,to this securing position will make the fastening quite effective. It' will be seen that when two clips of the form described are employed each serves to hold the other in this secured position. Other means for .holding either one or both of the clips in such position may be embodied in the constructions. In Figs-2 and 3 I have shown another method, consisting in making the slits in the inclosed folios or leaves at such positions'that they coincide with the slits in the cover only when the two are relatively displaced laterally, so that the inolosed folios or leaves project beyond the sides ofthecover a distance equal to the range of movement of the clip in the slits and at the side from which the clip must be moved longitudinally to reach securing position with respect to the cover. The principal figures of the drawings show this construction, and it constitutes an additional safeguard against disengagement of the leaves from the cover, which is operative merely -by virtue of the coincidence of the lateral edges.

1. An album comprising a cover and leaffolios having at their folds corresponding slots, in combination with a leaf-retaining device having hooked projections adapted to be hooked through the slots respectively and to overhang the fold at the end of the slots, and means for keeping the leaf-retaining device, with its hooks, in such overhanging position.

2. An album comprising a cover and leaffolios having at their folds corresponding slots, in combination with a leaf-retainer consisting of two parts, each provided with a hook adapted to be entered through the slots and relatively displaced longitudinally to overhang the fold, each at one end of the slot through which it is entered, and means for securing the two parts together after such longitudinal movement.

3. An album comprising a cover and leaf folios having at their folds corresponding slots, two in each folio, in combination with a leafretainer comprising two pieces, each provided witha hook adapted to be entered through the slots respectively, and overhanging the fold at one end thereof, said folios and cover having a third slot intermediate the other two, and the parts of the leaf-retainer having each a second projection adapted to enter through moved to cause the hook to overhang the fold beyond the end of the slot, the other projection may be entered through its slot.

5. An album comprising a cover and leaffolios, having at their folds two corresponding slots, in combination with a leaf-retainer having hooked projections whose hook terminals jut in opposite directions, the distance between the extremities of the hooks of said projections being difierent from the distance between the corresponding extremities of the slots by an amount less than the length of one slit, whereby said fastener is adapted to have one projection inserted through one set of coinciding slits, and have the other projection entered through its slits when the fastener is moved longitudinally to cause the hook of the firstprojection to overhang the fold beyond the end of the slit through which it was entered. s a

6. An album comprising a cover and ini closed leaf-folios having slits at their folds,

said slits in the cover and folios coinciding respectively when the cover and folios are relatively displaced laterally from normal or secured position, the slits of the folios lapping onto a portion of the corresponding slits of the cover when the parts are in normal position relatively; in combination with a fastener having hooked projections which may be entered through the slits when the latter are 00- incident and overhang the foldof the cover at the end of the slits when the fastener is moved longitudinally by restoring the folios from displaced to normal position.

7. An album comprising a cover and inclosed folios having each two slits corresponding respectively; a leaf-retaining-clip having hooked projections adapted to be inserted through the slits of the folios and cover, the

distance between the extremities of the hooks being greater than the distance between the remote extremities of the two slits by an amount less than the length of one slit, whereby said clip having one hook entered through one set of slits, requires longitudinal movement, causing said hook to overhang the end of such slit, in order to permit the hook of the other projection to enter through its slits, and whereby, upon being moved back part way, said hooks will both overhang the ends of their respective slits; in combination with a second clip having a projection which enters through one set of slits, and means for securing said clip against longitudinal movement with respect to both the cover and folios, and for securing it to the other clip.

8. An album comprising a cover and inclosed folios, said cover and folios having each three slits, two leaf-retaining clips having each a hook adapted to be hooked respectively through the two outer slits, and to overhang the folds at one end of the slits respectively, and having each a second projection adapted to enter the middle slit, and means for securing the two clips together after said middle slit is entered by the projection.

9. An album comprising a cover and inclosed folios having each three corresponding slits; a fastener comprising two clips, each having a projection adapted to be hooked through the outer slits so as to overhang the fold at the ends of the slits, and having each a second projection adapted to enter the middle slit, the last-mentioned projections having eyelets which coincide when the twoclips have their end hooks adjusted to the extremities of the slits and overhanging the folds beyond the same, and means for securing the eyeleted projections together at the eyelets.

10. In an album comprising a cover and inclosed folios having slits at the folds and leafretaining clips entered through the slits, said clips having each a projection entered through the same slit and eyeleted, and having each a second projection in the form of a hook, and provided with recesses at the angle of their hooks, and a retaining-cord looped through the coinciding eyelets and engaged in the recesses of the otherprojections.

In testimony whereof I have hereunto set my hand, in the presence of two witnesses, at 5 Chicago, Illinois, this 20th day of September, 1902.

ALBERT w. ENGEL. 

